[W]e have scraped some data from a wikipedia page into a Google spreadsheet using the =importHTML formula, published a handful of rows from the table as CSV, consumed the CSV in a Yahoo pipe and created a geocoded KML feed from it, and then displayed it in a YahooGoogle map.

As Tony says ‘Kewel :-)’

It may sound arcane but don’t be put off by the seemingly techy. Tony provides a reallu usable tutorial and the key thing is to experiment with data that’s relevent to you.